Question detail
What is a common effect of carbon monoxide on human health?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Common atmospheric pollutants and their sources
Question
- A. It increases oxygen levels in the blood.
- B. It reduces the ability of blood to carry oxygen.
- C. It enhances respiratory function.
- D. It has no significant health effects.
Answer
The correct option is It reduces the ability of blood to carry oxygen.. This answer is correct because it matches the approved learning objective to describe how atmospheric pollutants can affect human health in the subtopic Properties and effects of atmospheric pollutants.
Explanation
The correct option is It reduces the ability of blood to carry oxygen.. It reduces the ability of blood to carry oxygen. is correct because it directly supports the approved learning objective to describe how atmospheric pollutants can affect human health. This belongs to the subtopic Properties and effects of atmospheric pollutants within Common atmospheric pollutants and their sources, so the explanation must stay tied to that curriculum context. The other options are incorrect because they either do not answer this learning objective, use a vague statement, or move away from Properties and effects of atmospheric pollutants.
Common mistake
Misunderstanding Health Effects
Students often confuse the general effects of pollutants with specific health impacts, failing to link particular pollutants to their health consequences.
Focus on studying how each pollutant specifically affects human health, such as carbon monoxide reducing oxygen transport in blood or particulates causing respiratory issues.
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